import "package:flutter/material.dart";

void main() => runApp(MyApp());

class MyApp extends StatelessWidget{
  @override
  Widget build(BuildContext context){
    return MaterialApp(
      title: 'Container',
      home: Scaffold(
        body: Center(
          child: Container(
            child: new Text('Hello World', style: TextStyle(fontSize: 40.0),),
            alignment: Alignment.topLeft,
            width: 500.0,
            height: 400.0,
            ///color: Colors.lightBlue,
            padding: const EdgeInsets.fromLTRB(10.0, 100.0, 0.0, 0.0),
            margin: const EdgeInsets.all(10.0),
            decoration: new BoxDecoration(
              gradient: const LinearGradient(
                  colors: [Colors.lightBlue, Colors.greenAccent, Colors.purple]
              ),
              border: Border.all(width: 5.0, color: Colors.red)
            ),
          ),
        ),
      ),
    );
  }
}